JP2945694B2 - Ceramic bonding device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a ceramic joining holding device used when clamping ceramics when joining a pair of ceramic joined objects.

[Prior Art] When joining a pair of ceramic articles with high joining accuracy, as shown in FIG. 8, a bonding agent layer 3 is arranged between the joining surfaces of the pair of ceramic articles 1 and 2. Then, the pair of ceramic joined bodies 1 and 2 are joined by melting and solidifying the joining agent layer 3 by an electric joining method or the like. In this case, the pair of ceramic bonded bodies 1 and 2 are held by a ceramic bonding holding device having a pair of clamp jigs 4 and 5, respectively.

[Problems to be Solved by the Invention] The bonding agent layer 3 is formed by applying a fluid bonding agent to a bonding surface of a ceramic joined body and pre-baking it, or extending a ceramic bonding agent into a sheet and temporarily forming the same. It is manufactured by sintering or sintering a calcined solid bonding agent for ceramics to a desired thickness. Ideally, as shown in FIG. 9 (A), if the joining surfaces of the pair of ceramic members 1 and 2 are parallel and the thickness of the joining agent layer 3 is uniform, the entire joining surface is In addition to uniform heating, reduction in bonding strength can be suppressed, and the two ceramic bonded bodies can be bonded accurately and linearly (to make the axes of both ceramic bonded bodies coincide with each other). However, in practice, it is difficult to make the thickness of the bonding agent layer 3 uniform. For example, when a bonding agent layer having a thickness of 400 μm is manufactured, the difference between the thickest part and the thinnest part is about 10 μm on average. Occurs. Although the drawing is exaggerated, as shown in FIG. 9 (B), when the bonding agent layer 3 whose thickness decreases from one side to the other side is used, the two ceramic bonded bodies 1 and 2 are used.
Will be joined in a bent state. Even if the thickness of the bonding agent layer 3 is uniform, if the bonding surfaces of the ceramic bonded bodies 1 and 2 are inclined as shown in FIG. 9 (C), the bonding is performed in a bent state. You.

An object of the present invention is to allow a pair of ceramic members to be joined straight even if the thickness of the bonding agent layer is not uniform, or even when the joining surfaces of the pair of ceramic members are not parallel. An object of the present invention is to provide a holding device for joining ceramics.

Another object of the present invention is to correct the thickness of the bonding layer during bonding even if the thickness of the bonding agent layer is uneven when the bonding surfaces of the pair of ceramic bonded bodies are parallel. An object of the present invention is to provide a ceramic bonding holding device that can be made uniform.

Means for Solving the Problems According to the present invention, a bonding agent layer is disposed on a bonding surface of a pair of ceramic bonded bodies, and the bonding agent layer is melted and then solidified to bond the pair of ceramic bonded bodies. In this case, the present invention is directed to a ceramic bonding holding device that holds a pair of ceramic bonded bodies with a pair of clamp jigs or a pair of holders including a clamp jig.

According to the first aspect of the present invention, the at least one clamp jig is aligned with at least one of the pair of clamp jigs such that the axes of the pair of ceramic members are aligned when the bonding agent layer is melted. A clamp angle displacement mechanism for displacing the angle of the fixture is provided.

According to a second aspect of the present invention, there is provided a ceramic bonding holding device in which a pair of clamp jigs are vertically separated from each other. In this apparatus, the axis of the ceramic joined body clamped by the upper clamp jig is fixed so as to be vertical, and the lower clamp jig is provided with a clamp angle displacement mechanism. The clamp angle displacement mechanism includes a housing having a convex spherical surface provided at a non-clamp side end of a lower clamp jig, a concave spherical surface corresponding to the convex spherical surface, and movably supporting the convex spherical surface. Is provided. The curvatures of the convex spherical surface and the concave spherical surface are determined such that the respective radial centers are located at points where the vertical line and the joints of the pair of ceramic members are crossed.

The invention according to claim 3 also provides a ceramic bonding holding device in a case where a pair of clamp jigs are arranged vertically apart. In this apparatus, the lower clamp jig is fixed so that the axis of the clamped ceramic workpiece is vertical, and the upper clamp jig is provided with a clamp angle displacement mechanism. This clamp angle displacement mechanism comprises: a rotation support for rotatably supporting the non-clamp side end of the upper clamp jig about the rotation center; and a direction perpendicular to the vertical line. And a biasing means for biasing the rotation support so that the rotation center of the rotation support is positioned on the vertical line.

According to a fourth aspect of the present invention, in the second or third aspect of the invention, there is provided a guide for positioning the axis of the ceramic joined body clamped on the clamp jig to be fixed on a vertical line, and a fixed-side clamp angular displacement mechanism. May be provided.

A fifth aspect of the present invention provides a ceramic bonding holding device in which a pair of holding jigs including a clamp jig and an abutting jig are laterally separated from each other. According to the present invention, the contact jig is fixed so that the axis of the ceramic joined body to be contacted is positioned on a horizontal straight line, the clamp jig is provided with a clamp angle displacement mechanism, and the axis of the pair of ceramic joined bodies is further fixed. A horizontal holding guide is provided for holding the pair of ceramic joined bodies in a horizontal state when the values match. The clamp angle displacement mechanism includes a spherical seat provided at the non-clamp side end of the clamp jig, a sphere accommodated in the spherical seat, and a sphere contacted with the sphere and pressed against the spherical seat by a predetermined pressure. And a flexible spherical pressing member that allows the clamp jig to move in the horizontal direction when the bonding agent layer is pressed and melted and solidified.

According to a sixth aspect of the present invention, there is provided a ceramic bonding holding device in which a pair of clamp jigs are arranged apart from each other in a lateral direction. In this invention, one clamp jig is provided with a fixed-side clamp angle displacement mechanism that does not move in the horizontal direction, and the other clamp jig is provided with a clamp angle displacement mechanism as a movable-side clamp angle displacement mechanism. A horizontal holding guide is provided for holding the pair of ceramic joined bodies in a horizontal state when the axes of the ceramic joined bodies coincide with each other. The fixed-side clamp angular displacement mechanism includes a spherical seat provided at a non-clamp side end of one clamp jig,
A movable sphere pressing mechanism having the same configuration as the clamp angular displacement mechanism of the invention according to claim 5, using a flexible sphere pressing member that comes into contact with the sphere housed in the spherical seat. Is used.

[Operation] When the clamp angle displacement mechanism is provided as in the first aspect of the present invention, even if the thickness of the bonding agent layer is non-uniform (e.g., inclined) or the thickness of the bonding agent layer is uniform. When at least one of the joining surfaces of the pair of ceramic joined bodies is inclined with respect to the axis and both joining surfaces are not completely parallel, when the joining agent layer is melted, the axis of the pair of ceramic joined objects is changed. Since the angle of at least one of the clamp jigs can be displaced so as to match, the pair of ceramic joined bodies can be joined straight. If the joining surfaces of the pair of ceramic members are parallel, the thickness of the joining layer becomes uniform, and the strongest joining strength can be obtained.

According to the second aspect of the present invention, when the pair of clamp jigs are arranged apart from each other in the up-down direction, the axes of the pair of ceramic joined bodies are matched using gravity. When the upper clamp jig clamps one of the ceramic bonded bodies so that the axis is vertical, if the thickness of the bonding agent layer is not uniform or the bonding surface of the ceramic bonded body is not parallel, The other ceramic joined body is arranged to be inclined with respect to the vertical line. When the bonding agent layer is heated and melted, the convex spherical surface provided at the non-clamp side end moves along the concave spherical surface in the housing due to the action of gravity, so that the angle of the axis of the lower clamp jig is reduced. Changes. Finally, the axis of the lower clamp jig coincides with the vertical line, so that the axis of the ceramic workpiece clamped by the lower clamp jig and the axis of the ceramic clamped by the upper clamp jig coincide. In this state, the two ceramic members are joined. The center of the radius of each of the convex spherical surface and the concave spherical surface is located at a point where a vertical line intersects with a joint portion of the pair of ceramic workpieces.
By determining the respective curvatures of the convex spherical surface and the concave spherical surface, the axis of the lower clamp jig can be surely coincident with the vertical line.

According to the third aspect of the present invention, the upper clamp jig is provided with a clamp angular displacement mechanism. In this case, the lower clamp jig is clamped so that the axis of the ceramic joined body clamped is vertical. When the bonding agent layer is heated and melted, the restriction on the bonding surface side of the upper ceramic bonded body is released, and the rotating support member rotatably supports the upper clamp jig by the urging force of the urging means. Moves so that the rotation center is located on the vertical line. The upper clamp jig is rotated by the action of gravity about the rotation center of the rotation support so that its axis is aligned with the vertical line. As a result, the two ceramic workpieces are joined in a state where the axes of the ceramic workpiece clamped by the lower clamp jig and the ceramic workpiece clamped by the upper clamp jig coincide with each other.

When the processing accuracy of the ceramic joined body is poor, the axis of the clamped ceramic joined body may not be aligned with the vertical line by simply clamping the ceramic joined body with the clamp jig. Therefore, as in the invention of claim 4, if a guide and a fixed-side clamp angular displacement mechanism are provided so that the axis of the ceramic joined body clamped to the clamp jig on the fixed side is aligned with the vertical line, Ceramic workpieces with poor processing accuracy can be easily bonded.

According to the fifth aspect of the present invention, when a pair of holders including a clamp jig and an abutting jig are arranged to be separated from each other in the lateral direction, the axes of the pair of ceramic joined bodies are made to coincide by using gravity. In particular, the invention of claim 5 is suitable for a case where the processing accuracy of the ceramic joined body is good. When one of the holders is simply fixed, an abutting jig is used as the holder in order to smoothly displace one of the ceramic members during joining. If the thickness of the bonding agent layer is not uniform, the other ceramic bonded body sandwiching the bonding agent layer is disposed at an angle with respect to the axis of one ceramic bonded body. Even if the other ceramic joined body is inclined, the spherical seat provided on the non-clamp side end of the other clamp jig rotates around the sphere and the flexible sphere pressing member bends. Holds the other ceramic joined body. When the bonding agent layer is melted by heating, the constraint on the bonding surface side of the other ceramic bonded body is released, and the rotation function between the spherical seat and the sphere and the sphere pressing member at the time of bonding, the horizontal pressing member of the other clamp jig By allowing movement in the direction and the action of gravity, the upper part of the other ceramic bonded body moves upward when the upper part is raised, and the other ceramic bonded body is moved to the horizontal holding guide. Will be retained. As a result, the joining is performed in a state where the axes of the pair of ceramic joined bodies are aligned.

According to the fifth aspect of the present invention, the ceramic joined body abutting on the abutting jig must satisfy a certain processing accuracy. On the other hand, according to the sixth aspect of the present invention, even if the processing accuracy of the ceramic joined body is poor, since the clamp angle displacement mechanism is provided for the fixed-side clamp jig, joining can be performed. If the clamp jigs on both the fixed side and the moving side are provided with a clamp angle displacement mechanism, the pair of ceramic bonded bodies can be simply clamped so that the joint is positioned above, and the axis of both ceramic bonded bodies can be adjusted. Can be joined so as to match. The operation at the time of joining is the same as that of the fifth aspect.

Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings.

(Example 1) Fig. 1 shows an example of a ceramic bonding holding device in which a pair of clamp jigs are arranged in a vertical direction, and this device is used in an electric bonding method. In FIG. 1, reference numerals 1 and 2 denote ceramic bonded bodies, and reference numeral 3 denotes a sheet-like bonding agent layer. 4 is an upper clamp jig and 5
Is a lower clamp jig. The ceramic joined body to be joined in the present embodiment has a rectangular cross-sectional shape with one side of 15 mm, and the dimension in the axial direction is 2 mm. At one end of the clamp jig 4 on the non-clamp side, there is a position adjusting rod 6 that supports the clamp jig 4 so that the axis of the clamp jig 4 coincides with the vertical line. The position adjusting rod 6 is supported by a support means (not shown), and moves the clamp jig 4 in the vertical direction when attaching and detaching the ceramic joined body 1. Although not shown, a rod driving device is provided at an end of the position adjusting rod 6 for adjusting a gap size between the two ceramic bonded bodies 1 and 2 when the bonding agent layer 3 is melted. Have been. The clamp structure of the clamp jig 4 may be any structure as long as it can hold the end of the ceramic joined body 1.

The lower clamp jig 5 is screwed into an opening end of the clamp body 7 having a storage recess 7a that opens upward, a lower heat insulating material 8 stored in the storage recess 7a, and an opening end of the clamp body 7. A pair of adjusting bolts 9 and 10 and side heat insulators 11 and 12 fixed to one end of the adjusting bolts 9 and 10 are provided. The lower heat insulating material 8 is in contact with the end face of the ceramic joined body 2 to support the ceramic joined body in the axial direction. The side insulation materials 11 and 12 are provided with adjustment bolts 9 and
The position adjustment is performed by rotating the ceramic joint 10, and the ceramic joint 2 is supported from the lateral direction by contacting the opposite side surfaces of the ceramic joint 2 with each other. These insulations 8, 11 and 12
Is used to prevent heat transmitted through the ceramic joined body 2 from being transmitted to the clamp body 7 when the bonding material layer 3 is heated by the electric bonding method.

The non-clamp side end of the clamp body 7 has a convex spherical surface.
13 are formed, and stoppers 14 and 15 are integrally provided on the side wall portion. The clamp body 7 is housed in a housing 17 having a concave spherical surface 16 corresponding to the convex spherical surface 13 and supporting the convex spherical surface 13 movably. A ball bearing 18 is disposed between the convex spherical surface 13 and the concave spherical surface 16 to smoothly move the clamp body 7. In addition, without using the ball bearing 18, the spherical surfaces 13 and 16
May be made of a bearing material. Here, the convex spherical surface 13 and the concave spherical surface 16 have a curvature or a radius of curvature such that their respective radial centers are located at points where the vertical line X intersects the joining portion (3) of the pair of ceramic members 1 and 2. R1 and R2
Is stipulated. Stopper inside housing 17
Corresponding to 14 and 15, fixed stoppers 19 and 20 are protruded. These stoppers serve to prevent the clamp body 7 from rotating too far. A spring having the same strength is provided between the inner wall surface on the opening side of the housing 17 and the outer wall surface of the clamp body 7 in order to adjust the initial position of the clamp body 7 and to suppress the planar rotation of the clamp body 7. Are provided for adjustment.

In the above embodiment, the convex spherical surface 13, the concave spherical surface 16, the ball bearing 18 and the housing 17 constitute a clamp angular position displacement mechanism. The electrical joining method employed in the present embodiment and the bonding agent used in the joining method are described in detail in JP-A-62-65985 and JP-A-62-65986, and therefore description thereof is omitted. .

Next, the operation of the above embodiment will be described. As shown in FIG. 2A, when the thickness of the bonding agent layer 3 is not uniform, the axis X1 of the lower ceramic bonded body 2 is aligned with the axis of the upper ceramic bonded body 1, that is, the vertical line X. It will be arranged at an angle. When the bonding agent layer 3 is heated and melted by the electric bonding method, the action of gravity causes the convex spherical surface 13 provided on the non-clamp side end and the concave spherical surface 16
As a result, the lower clamp jig 5 moves, and the angle of its axis X1 with respect to the vertical line X changes. Finally, as shown in FIG. 2 (B), the axis X1 of the lower clamp jig 5 coincides with the vertical line X, and as a result, the ceramic joined body 2 clamped by the lower clamp jig 5 The two ceramic workpieces are joined in a state where the axes of the ceramic workpieces 1 clamped by the upper and lower clamp jigs coincide with each other. When the bonding agent is solidified after the bonding agent layer 3 is melted, a rod driving unit (not shown) connected to the position adjusting rod 6 is operated, and a gap between the bonding surfaces of the ceramic joined bodies 1 and 2 is formed. Is adjusted.

When the joining surfaces of the ceramic joined bodies 1 and 2 are parallel, the thickness of the joining layer becomes uniform, and the strongest joining layer can be obtained. According to this embodiment, even when the thickness of the bonding agent layer 3 is uniform and the bonding surfaces of the ceramic bonded bodies 1 and 2 are not parallel, the pair of ceramic bonded bodies can be bonded straight with high accuracy. Can be. In this case, it is necessary to form the end surface of the ceramic joined body on the clamp jig side so as to be orthogonal to the axis.

Embodiment 2 FIGS. 3A and 3B show an embodiment in which a clamp angle displacement mechanism is provided in an upper clamp jig. FIG. 3 (A) shows a state before joining, and FIG. 3 (B) shows a state after joining. In this embodiment, the ceramic joint 2 clamped by the lower clamp jig 5 is fixed so that the axis thereof becomes a vertical line X. A spherical rotating body is provided at the non-clamp side end of the upper clamp jig 4.
23 are provided. The rotating body 23 is rotatably supported by a rotating support 24. The rotation support 24 is slidably housed in a housing recess 26 formed at the end of the position adjusting rod 25. The position adjusting rod 25 constitutes a holder for holding the rotary support 24 movably in a direction perpendicular to the vertical line X. Between the inner wall of the storage recess 26 and the longitudinal end of the rotary support 24, the rotation center of the rotary support 24 (the center of the rotary body 23) is rotated so as to be positioned on the vertical line X. Spring members 27 and 28 as urging means for urging the dynamic support 24 are arranged.

Next, the operation of this embodiment will be described. As shown in FIG. 3 (A), before joining, the axis X1 of the ceramic joined body 1 above does not coincide with the vertical line X. When the bonding agent layer 3 is heated and melted, the constraint on the bonding surface side of the upper ceramic bonded body 1 is released, and the upper clamp jig 4 is rotatably supported by the urging force of the spring members 27 and 28. The rotating support 24 moves within the storage recess 26 so that the center of rotation is positioned on the vertical line X. And the upper clamp jig 4
Is rotated by the action of gravity acting on the clamp jig 4 around the center of rotation of the rotary support 24 so that the axis X1 of the clamp jig 4 coincides with the vertical line X. I do. As a result, as shown in FIG. 3 (B), the ceramic joined body 2 clamped by the lower clamp jig 5 and the ceramic joined body 1 clamped by the upper clamp jig 4.
The two ceramic joined bodies are joined in a state where the axes of the two coincide with each other.

In this embodiment, when the non-bonding side end faces of the ceramic bonded bodies 1 and 2 are clamped by the clamp jigs 4 and 5, the axes of the ceramic bonded body and the clamp jig coincide with each other. Must have been.

(Example 3) This example relates to an improvement of Example 2, and even when the end surface of the ceramic joined body is inclined without being orthogonal to the axis, a pair of ceramic joined bodies is straightened. In order to enable joining, a fixed-side clamp angular displacement mechanism is provided for the fixed-side clamp jig. 4th
3A to 3C are views for explaining this embodiment. In these drawings, the same members as those in the embodiment of FIG. 3 are denoted by the same reference numerals as those in FIG. And the description is omitted. The non-joining surface 2'a of the ceramic joined body 2 'which is clamped by the clamp jig 5 on the lower fixed side is inclined and is not orthogonal to the axis of the ceramic joined body 2'. Therefore, in this embodiment, a spherical seat is slidably contacted with a sphere at the end of the clamp jig 5 on the non-clamp side.
29, a spherical rod 30 is accommodated in the spherical seat 29, and a supporting rod for slidably supporting the spherical body 30 in contact with the spherical body 30.
31 are provided. Further, a pair of vertical guides 32 and 33 are provided for guiding the axis of the ceramic joined body 2 'so as to be vertical. FIG. 4 (A) shown in FIG. 4 (B)
As can be seen from the cross-sectional view taken along the line BB of FIG. 3, since the cross-sectional shape of the ceramic joined bodies 1 and 2 'is square, the vertical guides 32 and 33 are formed by a pair of opposed corners of the ceramic joined body 2. It is formed in a shape that can be slidably fitted with. The shape of the vertical guide may be an appropriate shape according to the cross-sectional shape of the ceramic joined body.

Before the joining, as shown in FIG. 4 (A), even if the end face 2'a of the lower ceramic joined body 2 'is inclined,
The spherical seat 29 of the lower clamp jig 5 rotates around the sphere 30, and the sphere 30 slides on the end surface of the support rod 31 to displace the angle of the clamp jig 5. Can support the ceramic joined body 2 '. At the time of joining, since the angle of the upper clamp jig 4 was changed in the same manner as in the embodiment of FIG. 3, the axes of the ceramic joined bodies 1 and 2 'were aligned as shown in FIG. 4 (C). Bonding can be performed in a state.

Fourth Embodiment FIGS. 5A and 5B show an embodiment of a ceramic bonding holding device in a case where a pair of clamp jigs are arranged in a horizontal direction. The present embodiment is an example in which pipe-shaped ceramic joined bodies 101 and 102 are joined in a straight line. 103 is a bonding agent layer, 104 is a clamp jig, and 105 is a contact jig. In FIG. 5A, the state after the joining is indicated by a solid line, and the state before the joining is indicated by a broken line. As the bonding agent layer 103, a sheet-like material subjected to a perforation process is used. Reference numerals 106 and 107 denote horizontal holding guides for holding the pair of ceramic joined bodies in a horizontal state when the axes of the ceramic joined bodies 101 and 102 coincide with each other. The horizontal holding guides 106 and 107 have a sectional shape shown in FIG. 5 (B).

The contact end surface 105a of the contact jig 105 is in contact with the end surface of the pipe-shaped ceramic joined body 102. The contact end surface 105a of the contact jig 105 is formed so as to be perpendicular to the surface 107a of the horizontal guide member 107, and the ceramic joined body 10 is formed such that the axis of the ceramic joined body 102 is a horizontal straight line Y.
It comes into contact with the second end face 102a. The end surface 102a on the non-joining surface side of the ceramic joined body 102 is subjected to high-precision finishing so as to be orthogonal to the axis. In order to configure a clamp angle displacement mechanism for adjusting the angle of the clamp jig 104, a spherical seat 108 is formed at the non-clamp side end of the clamp jig 104, and a spherical body 109 is housed in the spherical seat 108. A sphere pressing member 110 that contacts the sphere is provided. Spherical pressing member 1
10 is made of a flexible material or is formed in a dimensional shape showing flexibility. This sphere pressing member
Reference numeral 110 denotes a sphere 109 which is displaced in accordance with the inclination of the clamp jig 104, and is bent so as to press the sphere 109 with a predetermined pressure, so that when the bonding agent layer 103 melts and solidifies, the clamp jig 104 Move horizontally to allow to move to.

 Next, the operation of this embodiment will be described.

Also in this embodiment, the axes of the pair of ceramic joined bodies 101 and 102 are made to coincide by utilizing gravity. If the thickness of the bonding agent layer 103 before bonding is not uniform, the ceramic bonded object 101 sandwiching the bonding agent layer 103 is inclined with respect to the axis of the solid ceramic bonded body 102. Become.
Even if the ceramic joined body 101 is inclined, the spherical seat 108 provided on the non-clamp side end of the clamp jig 104 is a spherical body.
A spherical pressing member 110 that rotates around 109 and has flexibility
By bending, the ceramic joined body 101 can be held. When the bonding agent layer 103 is melted by heating, the restraint on the bonding surface side of the ceramic bonded body 101 is released, and the rotating function between the spherical seat 108 and the spherical body 109 and the spherical pressing member 110 at the time of bonding are used as a clamping jig. By allowing the horizontal movement of the 104 and the action of gravity, the upper end of the ceramic bonded object 101 moves downward, and the ceramic bonded object 101 is moved by the horizontal holding guide. 106
Is held. As a result, the joining can be performed in a state where the axes of the pair of ceramic members are aligned. When the joining surfaces of the ceramic joined bodies 101 and 102 are parallel, the thickness of the joining layer becomes uniform, and the strongest joining layer can be obtained. According to the present embodiment, even when the thickness of the bonding agent layer 103 is uniform and the bonding surfaces of the ceramic bonded bodies are not parallel, the pair of ceramic bonded bodies can be bonded straight with high accuracy.

(Embodiment 5) In the apparatus of Embodiment 4, the ceramic joined body abutting on the fixed-side abutting jig 105 must satisfy a certain processing accuracy. In the present embodiment, a pair of ceramic joined bodies can be joined straight even when the processing accuracy of the end face is poor. FIG. 6 shows a schematic configuration of the present embodiment after the joining is completed. 5, the same parts as those of the embodiment of FIG. 5 are denoted by the same reference numerals as those of FIG. 5, and the description is omitted. In this embodiment, the clamp jig 105 on the fixed side is also provided with a clamp angle displacement mechanism.
The fixed-side clamp angular displacement mechanism includes a spherical seat 111 formed at the non-clamp side end of the clamp jig 105, a sphere 112 housed in the spherical seat 111, and a flexible sphere pressing member that comes into contact with the sphere 112. And a member 113. According to this apparatus, as shown in FIGS. 7 (A) and (B), when the end faces of the ceramic joined bodies 101 ', 102', 101 "and 102" are inclined without being orthogonal to the axis. Also in this case, the pair of ceramic members can be joined straight.
Also in this case, it is preferable that the joining surfaces of the pair of ceramic members be selected so as to be as parallel as possible.

In the above embodiments, when joining a non-parallel thing to the extent caused by an error in processing of a pair of ceramic joined body joint surfaces, the entire joint surface of both may be abutted after the bonding agent is melted, As a result, the joint is joined in a delicately bent state with the joint as a part, but can be acceptable at the product level.

[Effects of the Invention] According to the present invention, since the clamp angle displacement mechanism is provided, the thickness of the bonding agent layer is uneven, or the thickness of the bonding agent layer is uniform, and the bonding surface of the pair of ceramic members to be bonded. Even if not completely parallel, it is possible to displace the angle of at least one of the clamp jigs so that the axes of the pair of ceramic members are aligned when the bonding agent layer is melted. There is an advantage that the body can be joined straight.

According to the second and third aspects of the present invention, when the pair of clamp jigs are vertically separated from each other, the axes of the pair of ceramic joined bodies can be easily and accurately aligned using gravity. There are advantages that can be.

According to the fourth aspect of the present invention, since the fixed-side clamp angular displacement mechanism is provided so that the axis of the ceramic joined object clamped to the clamp jig on the fixed side is placed on the vertical line, the ceramic with poor processing accuracy is provided. An object to be joined can also be joined straight.

According to the fifth and sixth aspects of the present invention, when a pair of holders including a clamp jig are arranged apart from each other in the lateral direction, the axes of the pair of ceramic joined bodies can be easily matched using gravity. There is an advantage that joining can be performed. In particular, according to the invention of claim 6, there is an advantage that even if the processing accuracy of the ceramic joined body is low, the joining can be performed because the clamp angle displacement mechanism is provided for the fixed-side clamp jig.

[Brief description of the drawings]

FIG. 1 is a view showing a schematic configuration of an embodiment in which a pair of clamp jigs are vertically separated from each other, and FIGS. 2 (A) and (B) each explain the operation of the embodiment of FIG. FIGS. 3 (A) and 3 (B) are diagrams for explaining the structure and operation of another embodiment in which a pair of clamp jigs are arranged vertically apart from each other, and FIGS. FIGS. 4A and 4C are diagrams for explaining the structure and operation of still another embodiment in which a pair of clamp jigs are arranged vertically apart from each other, FIG.
FIG. 4B is a cross-sectional view taken along the line BB of FIG. 4A, and FIG. 5A is a schematic view showing a configuration of an embodiment in which a pair of holding tools are arranged apart from each other in the horizontal direction. 5 (B) is a cross-sectional view taken along the line BB of FIG. 5 (A), FIG. 6 is a schematic diagram showing a configuration of another embodiment in which a pair of clamp jigs are arranged apart from each other in the lateral direction, 7 (A) and 7 (B) are views each showing an example of a combination of a pair of ceramic joined bodies which can be joined in the embodiment of FIG. 6, and FIG. 8 is a view for explaining a conventional apparatus. FIG. 9 (A) is a view showing a state before joining when an ideal joining agent is used, and FIG. 9 (B) is a view showing a state before joining when an inclined joining agent is used. FIG. 3C is a view showing a state before joining when the thickness of the joining agent is uniform but the joining surfaces of the ceramic joined bodies are not parallel. 1,2,2 ', 101,102,101', 102 ', 101 "and 102" ... Ceramic bonded body, 3,103 ... Bonding agent layer, 4,5, ... Clamp jig, 6 ... Position adjusting rod, 7… Clamp body, 8,11,12 …… Insulation material, 9,10 …… Adjustment bolt, 14,15,1
9, 20 Stopper, 17 Housing, 18 Ball bearing, 23 Rotating body, 24 Rotating support, 25 Position adjustment rod, 26 Storage recesses 26, 27, 28 …… Spring members 27 and 28 (biasing means), 29,108,111 …… Spherical seat, 30,1
09, 112 sphere, 31 support rod, 32, 33 vertical guide, 104 clamp jig (holding tool), 105 abutment jig (holding tool), 106, 107 horizontal holding guide.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) C04B 37/00 B23K 3/00 310

Claims (6)

(57) [Claims] A bonding agent layer is disposed between bonding surfaces of a pair of ceramic bonded objects, and when the bonding agent layer is melted and solidified to bond the pair of ceramic bonded objects, A ceramic bonding holding device for holding a ceramic joined body with a pair of clamp jigs, wherein at least one of the pair of clamp jigs has a pair of ceramics when the bonding agent layer is melted. A holding device for ceramics bonding, comprising a clamp angle displacement mechanism for displacing the angle of at least one of the clamp jigs so that the axes of the members to be joined are aligned. 2. A pair of clamp jigs are arranged vertically apart from each other, and an upper clamp jig is fixed such that an axis of a clamped ceramic joined body is vertical.
The lower clamp jig is provided with the clamp angle displacement mechanism, and the clamp angle displacement mechanism corresponds to a convex spherical surface provided on a non-clamp side end of the lower clamp jig, and the convex spherical surface. A housing having a concave spherical surface and movably supporting the convex spherical surface, wherein each of the convex spherical surface and the concave spherical surface has a radial center at the joint between the vertical line and the pair of ceramic workpieces. 2. The ceramic joining holding device according to claim 1, wherein the curvature is determined so as to be located at a point where the crossing is made. 3. The pair of clamp jigs are vertically spaced apart from each other, and the lower clamp jig is fixed so that the axis of the clamped ceramic joined body is vertical.
An upper clamp jig is provided with the clamp angle displacement mechanism, and the clamp angle displacement mechanism pivotally supports a non-clamp side end of the upper clamp jig so as to be rotatable about a rotation center. A support, a holder for movably holding the rotary support in a direction orthogonal to the vertical line, and the rotary support so that the rotation center of the rotary support is positioned on the vertical line. The holding device for ceramics bonding according to claim 1, further comprising an urging means for urging the body. 4. The apparatus according to claim 2, further comprising a guide for positioning an axis of the ceramic joined body clamped to the clamp jig to be fixed on a vertical line, and a fixed-side clamp angular displacement mechanism. Ceramic holding device. 5. A method according to claim 1, further comprising: disposing a bonding agent layer between bonding surfaces of the pair of ceramic bonded objects, and melting and solidifying the bonding agent layer to bond the pair of ceramic bonded objects. In the ceramic bonding device for holding a ceramic joined body with a pair of holders, the pair of holders includes a clamp jig and an abutment jig arranged in a laterally separated manner. On the other hand, there is provided a clamp angle displacement mechanism for displacing the angle of the clamp jig so that the axes of the pair of ceramic members are aligned when the bonding agent layer is melted. The ceramic joints are fixed so that the axes of the ceramic joints that are in contact with each other are located on a horizontal straight line. A horizontal holding guide for holding the ball in a state, wherein the clamp angle displacement mechanism comprises: a spherical seat provided at a non-clamp side end of the clamp jig; a sphere housed in the spherical seat; A spherical pressing member having flexibility that allows the clamp jig to move in the horizontal direction when the spherical member is pressed against the spherical seat side with a predetermined pressure and the bonding agent layer is melted and solidified. A holding device for ceramics bonding comprising: 6. A bonding agent layer is disposed between bonding surfaces of a pair of ceramic bonded objects, and when the bonding agent layer is melted and solidified to bond the pair of ceramic bonded objects, In a ceramic bonding holding device for holding a ceramic joined body with a pair of clamp jigs, one of the pair of clamp jigs is provided with a fixed-side clamp angular displacement mechanism that does not move in the horizontal direction. The other clamp jig is provided with a moving-side clamp angle displacing mechanism for displacing the angle of the other clamp jig so that the axes of the pair of ceramic members are aligned when the bonding agent layer is melted. A horizontal holding guide for holding the pair of ceramic joined bodies in a horizontal state when the axes of the pair of ceramic joined bodies coincide with each other; The fixed-side clamp angle displacement mechanism includes a spherical seat provided at the non-clamp side end of the one clamp jig, and a flexible spherical pressing member that comes into contact with the sphere accommodated in the spherical seat. The moving-side clamp angle displacement mechanism includes a spherical seat provided at a non-clamp-side end of the other clamp jig, and the spherical body accommodated in the spherical seat being brought into contact with the spherical body so that the spherical body is in contact with the spherical seat. And a flexible sphere pressing member which presses the other clamping jig to the side at a predetermined pressure and allows the other clamp jig to move in the horizontal direction when the bonding agent layer is melted and solidified. Holding device for ceramic bonding.